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colonescape.go
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| package util | |
| import ( | |
| "bytes" | |
| ) | |
| func EscapeColon(s string) string { | |
| //Byte loop is OK for utf8 | |
| buf := new(bytes.Buffer) | |
| l := len(s) | |
| for i := 0; i < l; i++ { | |
| if s[i] == '%' { | |
| buf.WriteString("%%") | |
| } else if s[i] == ':' { | |
| buf.WriteString("%n") | |
| } else { | |
| buf.WriteByte(s[i]) | |
| } | |
| } | |
| return buf.String() | |
| } | |
| func UnescapeColon(s string) string { | |
| buf := new(bytes.Buffer) | |
| l := len(s) | |
| for i := 0; i < l; i++ { | |
| if s[i] == '%' { | |
| i++ | |
| if i == l { | |
| panic("never be here") | |
| } | |
| if s[i] == '%' { | |
| buf.WriteString("%") | |
| } else if s[i] == 'n' { | |
| buf.WriteString(":") | |
| } else { | |
| panic("never be here") | |
| } | |
| } else { | |
| buf.WriteByte(s[i]) | |
| } | |
| } | |
| return buf.String() | |
| } |
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| package util | |
| import ( | |
| "fmt" | |
| "github.com/stretchr/testify/assert" | |
| "testing" | |
| "strings" | |
| ) | |
| var _ = fmt.Println | |
| func TestEscapeColon(t *testing.T) { | |
| s1 := "asdf:a sdf" | |
| out := EscapeColon(s1) | |
| assert.False(t, strings.Contains(out, ":")) | |
| assert.Equal(t, "asdf%na sdf", out) | |
| assert.Equal(t, s1, UnescapeColon(out)) | |
| s1 = ":%%:%" | |
| out = EscapeColon(s1) | |
| assert.Equal(t, s1, UnescapeColon(out)) | |
| assert.False(t, strings.Contains(out, ":")) | |
| s1 = "nor_mal?!\\@ @!" | |
| assert.Equal(t, s1, EscapeColon(s1)) | |
| assert.False(t, strings.Contains(out, ":")) | |
| } |
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